What do the numbers after the letter 'T' represent in automated weather remarks?

• A. Temperatures and dew point values to the nearest tenth
• B. Wind speeds and gusts
• C. Visibility and cloud height
• D. Pressure tendency and trend direction

Answer: (A)

The numbers after the letter T show temperature and dew point values, both given to the nearest tenth. In automated weather remarks, the T group encodes two precise measurements: the air temperature and the dew point. These are typically in Celsius, with a tenth-of-a-degree precision that helps pilots judge humidity and fog potential. This group is specifically about temperature-related data, not wind, visibility, cloud height, or pressure tendency, which are reported in other parts of the observation.